This document discusses different generations of programming languages and SQL. It notes that SQL is a 4th generation language used to communicate with database management systems (DBMS), and is non-procedural. PL/SQL extends SQL with procedural features like conditions and loops. When using PL/SQL, one can work with functions, procedures, conditions, loops, triggers and packages. The document also explains that SQL contains data definition language (DDL) to create, alter and drop schema objects, data manipulation language (DML) to insert, update, delete and retrieve data, and data control language (DCL) to grant and revoke privileges from database users.

1. Muhammad Umair
Oracle Database 11g Developer Track

2. › 1st generation language – Machine Language
› 2nd generation language – Assembly language
› 3rd generation language – C++ , Java
› 4th generation language – C#, SQL

3. › Structure Query Language- SQL
– It is a 4th generation language used to communicate with DBMS.
– It is a non-procedural language
› PL/SQL
– PL/SQL is an extension to SQL that adds procedural language
features like condition and loops to SQL
– When using PL/SQL we can work with function, Procedures,
Conditions, loops, Triggers and packages

4. › Data Definition Language (DDL)
– A part of SQL us to create , alter and drop the schema objects.
› Data Manipulation Language (DML)
– A part of SQL use to insert, update, delete and retrieve data of the
database.
– Most of the time DML statements are embedded in the application.
› Data Control Language (DCL)
– A part of SQL used to grant and revoke privileges from database
users.